Malicious PDF — malware analysis report

Static analysis result for SHA-256 f24bcd06b0a11d6b…

MALICIOUS

PDF

36.3 KB Created: 2020-09-09 21:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd3b596ec02fffaf2f54d0c7cd3e78f8 SHA-1: 6306334135bd55b5b26988580356951ea190beed SHA-256: f24bcd06b0a11d6b51fad900295ec6646468e842082c63c7a6439023d4fb816d
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic indicating it's a malicious redirector, pointing to `https://ttraff.club/wix?keyword=adoption+pay+form`. It also features a link farm with numerous PDFs hosted on Shopify and other domains, likely for SEO poisoning or to obscure the malicious destination. The document body, though heavily obfuscated, contains the primary malicious URL and references to an 'Adoption pay form', aligning with a phishing or scam lure. The presence of multiple benign-looking PDF links on Shopify is a common tactic to build trust and mask malicious activity.

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.club/wix?keyword=adoption+pay+form
    • http://files.carriagehousepilatesandwellness.com/uploads/1/3/0/7/130740141/mobogadozonijavudinu.pdf
    • http://files.buymostwantedbooks.com/uploads/1/3/1/4/131410167/loduje.pdf
    • http://files.unfilteredperspectives.com/uploads/1/3/1/8/131856498/mijirakik-vebudojedo.pdf
    • http://files.aerialmediavisions.com/uploads/1/3/1/3/131398605/wiwizorepimivami.pdf
    • https://cdn.shopify.com/s/files/1/0465/3747/4198/files/65054182106.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53635556436.pdf
    • https://cdn.shopify.com/s/files/1/0436/2017/1936/files/goluvu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/tivivirorodezijef.pdf
    • https://cdn.shopify.com/s/files/1/0445/6418/5247/files/cours_de_chinois_gratuit.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ff9511d5cd44828b7cc1a251935ddcf.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_abaa73cf9c7f417bbfafd406b2d202ee.pdf
    • https://static.usrfiles.com/ugd/b222ea_2fc0f2b72fad4136a1b11e9d6548a477.pdf
    • https://static.usrfiles.com/ugd/65b209_7a289791946247e3bd009ba0132cbe0c.pdf
    • https://static.usrfiles.com/ugd/078c79_7dd2a021a8544e38a68e532a49d17879.pdf
    • https://static.usrfiles.com/ugd/e73fea_e70cf752528244b9b3b63b93a0a46f14.pdf
    • https://static.usrfiles.com/ugd/4dded2_68ca868bcb54431ab45a637b7c4d2a75.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051fc.bin
11591447d54466fdd97537e91e580027b1b5e5b5b577718592070857d6d213c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x51FC 5068 bytes
font_01_sfnt_off00006335.bin
09e56b35c53d9f0c5cda24034ca8ba5cc3683a5f96d74e1a8515aa5e210041f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6335 9792 bytes